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Paper Abstract and Keywords
Presentation 2021-03-03 14:00
Ferromagnetic Single-Electron Devices Comprising Co Nanoparticles Assembled by Use of On-Chip Electromagnets
Kenta Fujikura, Tetsuya Urae, Kazuma Sekine, Masataka Moriya, Hiroshi Shimada (UEC), Ayumi Hirano-Iwata (TU), Fumihiko Hirose (YU), Yoshinao Mizugaki (UEC) CPM2020-70
Abstract (in Japanese) (See Japanese page) 
(in English) In this research, cobalt nanoparticles, which are ferromagnets, were assembled in a nanogap by magnetic field alignment using an on-chip electromagnet. We covered the surface of the electrode with decandithiol, which was an insulating layer, and fabricated a ferromagnetic single-electron transistor using cobalt nanoparticles as island electrodes. We evaluated the shape of the on-chip electromagnets that concentrated the magnetic field at the nanogap by means of both simulation of the magnetic field distribution and the realized cobalt nanoparticle assembly. Also, we observed the Coulomb oscillation and the tunnel magnetoresistance effect by measuring the electrical characteristics of the fabricated device.
Keyword (in Japanese) (See Japanese page) 
(in English) Single-electron transistor / Cobalt nanoparticle / Coulomb blockade / Tunnel magnetresistance effect / / / /  
Reference Info. IEICE Tech. Rep., vol. 120, no. 408, CPM2020-70, pp. 55-58, March 2021.
Paper # CPM2020-70 
Date of Issue 2021-02-24 (CPM) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee CPM  
Conference Date 2021-03-03 - 2021-03-03 
Place (in Japanese) (See Japanese page) 
Place (in English) Online 
Topics (in Japanese) (See Japanese page) 
Topics (in English)  
Paper Information
Registration To CPM 
Conference Code 2021-03-CPM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Ferromagnetic Single-Electron Devices Comprising Co Nanoparticles Assembled by Use of On-Chip Electromagnets 
Sub Title (in English)  
Keyword(1) Single-electron transistor  
Keyword(2) Cobalt nanoparticle  
Keyword(3) Coulomb blockade  
Keyword(4) Tunnel magnetresistance effect  
1st Author's Name Kenta Fujikura  
1st Author's Affiliation The University of Electro-Communications (UEC)
2nd Author's Name Tetsuya Urae  
2nd Author's Affiliation The University of Electro-Communications (UEC)
3rd Author's Name Kazuma Sekine  
3rd Author's Affiliation The University of Electro-Communications (UEC)
4th Author's Name Masataka Moriya  
4th Author's Affiliation The University of Electro-Communications (UEC)
5th Author's Name Hiroshi Shimada  
5th Author's Affiliation The University of Electro-Communications (UEC)
6th Author's Name Ayumi Hirano-Iwata  
6th Author's Affiliation Tohoku University (TU)
7th Author's Name Fumihiko Hirose  
7th Author's Affiliation Yamagata University (YU)
8th Author's Name Yoshinao Mizugaki  
8th Author's Affiliation The University of Electro-Communications (UEC)
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Speaker Author-1 
Date Time 2021-03-03 14:00:00 
Presentation Time 15 minutes 
Registration for CPM 
Paper # CPM2020-70 
Volume (vol) vol.120 
Number (no) no.408 
Page pp.55-58 
Date of Issue 2021-02-24 (CPM) 

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